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发明名称
Safety hat
摘要
申请公布号
US2339080(A)
申请公布日期
1944.01.11
申请号
US19410382360
申请日期
1941.03.08
申请人
MINE SAFETY APPLIANCES COMPANY
发明人
KARABIN EDWARD V.
分类号
A42B3/10
主分类号
A42B3/10
代理机构
代理人
主权项
地址
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